[|: ESana TTEECCHHNNIICCAALL RREEPPOORRTT SSUUMMMMAARRYY TO:TO: TECHNICAL TECHNICAL COMMUNICATIONS COMMUNICATIONS CENTER CENTER --- 201.20 201-2CN Olmportant - If report is printed on both sides of paper, send two copies to TCC,) ------__ Division Foy _Enneviirfoenmental Laboratory (EE & pC) __ Environmental Laboratory amental Laboratory(BR8PO) Proiact wFar te oof Pluorochenicals Fate of Fluorochemicals f e fluotochendoals Report Title (EE & PC) - Final Comprehensive Report: FC 95 Final To R. 4.

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`IINCNoSnSTtTaRiRnUUsCCaTTsIIuOOmNNmSSarFFyOOoRRf aSSvTTaAAilFFaFFbleW WdOOaRtRaKKaSSnHHdEEoEnEgTToing staff analysis Data and Contains Data and analysisare subject to change a summary of available data and analysis are subject to change ongoing staff analysis Last Revised: 5/3/17 Last Revised: 5/3/17 PPeerrfflluuoorrooooccttaannooiicc AAcciidd Supplement to Original Review (completed on 12/07/2007) ReS-uEpvpalleumateinotntoFoOcruigseindaol nReKveiyewSt(ucdoimesplIedteendtiofnie1d2i/n07U/S20E07P)A Health Effects Support Re-Evaluation Focused on Health Effects Support Documents Released May Key Studies Identified in Documents Released May 2016 [IS EPA 2016 RRreeefferevttrooiooerriiggwiinnsaall-rreecFvviiioenewwamlwwpoPorFrlkkOssAehh\eetPeetFteO({Alldoo_cc2aa0ttee0dd7Raatte::v\Wi\DDeawat\taPa3Ff3bOM\eA\he~FHIiRRnaAAl\\CCNOoOvM M0V7M.IpOOdNNf)\GGuduieviddeaalnnoccpeeed-- iW Wnaat2t0ee0rr7i\TTfooo~xr `additional information reviews-completed\Final\PFOA\PFOA 2007Review\PFOA Final Nov07.pdf) developed in 2007 for additional information (CCAASS ## 333355--6677--11((ffrreeee aacciidd)) 5825-233633-551--66(66a--0m0m((oaaccniiidduffmlluusooarrliid,deeA))PFO) 3825-26-1 (ammonium salt, APFO) 335933 (slver sl) 22339955--0000-88 ((ppoottaassssiiuumm ssaalltt)) 333355.9-953--53((ssoidlvieurmssaallt)t) [Note: perfluorooctanoat3e3a5n-i9o5n-5do(essodnioutmhasavlet)a specific CAS number ] [Note: perfluorooctanoate anion does not have a specific CAS number.]

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22661177..00000011 E`E2xx6hh1iibb7iitt 2617 State of Minnesota v. 3M Co., Court File No. 27-CV-10-28862 STUDY SUMMARY FOR WORK PERFORMED DURING 1977-1979 TEST SUBSTANCE Identity: Perfluorooctanesulfonate; may also be referred to as PFOS or FC-95. (1-Octanesulfonic acid, 1,1,2,2,3,3,4.4,5,5.6,6,7.7,88,8- heptadecafluoro-, potassium salt, CAS # 2795-39-3) Remarks field: The test substance is a white powder of uncharacterized purity.